Chaos erupted this morning at the Richmond International Raceway as thousands of people stampeded through the gates in a rush to buy iBook laptop computers for $50 each.

Several people were injured as others trampled them outside a warehouse where the 4-year-old Apple laptops were being sold. None of the injuries appeared to be serious.

Thousands of Henrico County residents waited in a long line as dawn broke; many had come prepared with books, snacks, umbrellas and chairs. The first car arrived at 1:30 a.m. By 6:30 vehicles were backed up on Laburnum Avenue about a half mile to Carolina Avenue.

Even before the gates opened, the atmosphere turned surly, with people yelling at police officers who were trying to keep the crowd civil.